*{
    padding: 0;
    margin: 0;

}
#box{
    /* width: 1000px; */
    display: flex;
    background-color:#F7F7F7
}
.center{
    width: 1140px;
    margin: 0 auto;
}

.b1{
    margin-top: 10px;
}
.b1 span{
    padding: 3px;
}
.b1 a{
    color: #aaa;
    padding: 3px;
}
.b2{
   width: 1140px;
   height: 100%; 
   border: 3px solid white;
   margin: 30px ;
   background-color: white;
   border-radius: 30px;
   text-align: center;
}
.b2 img{
    padding-top: 60px;
    width: 80%;
}
.b2 h1{
    margin: 50px 0 30px 0;
}
.b3 span{
    display: inline-block;
    margin-left: 10px;
}
.b5{
    margin-top: 100px;
    margin-left: 50px;
    margin-bottom: 20px;
    padding-left: 720px;
    width: 300px;
    border-bottom: 1px  dashed #aaa;
}
.b6{
    display: inline-block; 
    margin-left: -520px;
    color: #aaa;
    margin-bottom: 20px;
}


.body{
    width: 1140px;
    height: 5428px;
    margin: 0 auto;
}